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EQUILENIN

Product Name
EQUILENIN
CAS No.
517-09-9
Chemical Name
EQUILENIN
Synonyms
E 400;NSC 9901;EQUILENIN;Equilenina;Equilenine;D-EQUILENIN;l-Equilenin;Isoequilenin;(+)-EQUILENIN;Isoequilenine
CBNumber
CB3774265
Molecular Formula
C18H18O2
Formula Weight
266.33
MOL File
517-09-9.mol
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EQUILENIN Property

Melting point:
258-259°
alpha 
D16 +87° (12.8 mg made up to 1.8 ml in dioxane)
Boiling point:
349.54°C (rough estimate)
Density 
1.1305 (rough estimate)
refractive index 
1.4800 (estimate)
Flash point:
2 °C
storage temp. 
2-8°C
solubility 
DMSO (Slightly), Methanol (Slightly, Heated)
pka
pKa 9.72 (H2O t=25.0±0.02 ) (Uncertain);9.75±0.06 (Uncertain)
form 
Solid
color 
Pale Yellow to Light Beige
optical activity
+10025 (1% in dioxane)
Water Solubility 
1.52mg/L(25 ºC)
EPA Substance Registry System
Equilenin (517-09-9)
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Safety

Hazard Codes 
F,Xn
Risk Statements 
11-20/21/22-36-48-40
Safety Statements 
16-26-36-36/37
RIDADR 
UN 1648 3/PG 2
WGK Germany 
2
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H225Highly Flammable liquid and vapour

H302Harmful if swallowed

H312Harmful in contact with skin

H319Causes serious eye irritation

H332Harmful if inhaled

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
33693
Product name
Equilenin solution
Purity
100?μg/mL in acetonitrile, VETRANAL?, analytical standard
Packaging
2ml
Price
$73.1
Updated
2022/05/15
Cayman Chemical
Product number
23322
Product name
Equilenin
Purity
≥98%
Packaging
500μg
Price
$121
Updated
2024/03/01
Cayman Chemical
Product number
23322
Product name
Equilenin
Purity
≥98%
Packaging
1mg
Price
$183
Updated
2024/03/01
TRC
Product number
E592400
Product name
Equilenin
Packaging
2mg
Price
$330
Updated
2021/12/16
Biosynth Carbosynth
Product number
FE22774
Product name
Equilenin
Packaging
2mg
Price
$400
Updated
2021/12/16
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EQUILENIN Chemical Properties,Usage,Production

Uses

Equilenin is a naturally occuring estrogenic steroidal hormone (1,2) isolated from urine of pregnant mares (3). Not found in human urine. Component of conjugated estrogenic hormones. Estrogen. This compound is a contaminant of emerging concern (CECs). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.

Uses

Estrogenic steroidal hormone isolated from urine of pregnant mares. Occurs naturally in the d-form. Not found in human urine. Component of conjugated estrogenic hormones. Estrogen.

Definition

ChEBI: Equilenin is a 3-hydroxy steroid that is estrone which carries two double bonds at positions 6 and 8. It is found in the urine of pregnant mare's and extensively used for estrogen replacement therapy in postmenopausal women. It has a role as a mammalian metabolite and an antioxidant. It is a 3-hydroxy steroid and a 17-oxo steroid.

Purification Methods

Crystallise (+)-equilenin from EtOH (solubility is 0.63% at 18o, 2.5% at 78o), aqueous EtOH or *C6H6 (Norite) and dry it in a vacuum. It sublimes on melting and at 170-180o/0.01mm. The acetate crystallises from MeOH with m 165-167o and [ ] D +71o (c 1, CHCl3). [Bachmann et al. J Am Chem Soc 62 824 1940, Beilstein 8 III 1522, 1523, 1525, 8 IV 1420.]

EQUILENIN Preparation Products And Raw materials

Raw materials

Preparation Products

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517-09-9, EQUILENINRelated Search:

EQUILENIN EQUILENIN-4,16,16-D3 D-EQUILENIN METHYL ETHER D-EQUILENIN BENZYL ETHER D-EQUILENIN ACETATE EQUILENIN SODIUM SULPHATE,EQUILENIN SODIUM SULFATE,Sodium equilenin sulfate 4-BROMOEQUILENIN D-EQUILENIN ETHYL ETHER D-EQUILENIN BENZOATE 17β-Equilenin Equilin-d4 equilenin benzoate equilenin-3,4-quinone Equilenin acetate Equilenin 3-methyl ether,Equilenin methyl ether 14BETA-EQUILENIN equilenin sulfatase 4-hydroxyequilenin

  • 3-hydroxyoestra-1,3,5(10),6,8-pentaen-17-one
  • (+)-EQUILENIN
  • EQUILENIN
  • D-1,3,5(10),6,8-ESTRAPENTAEN-3-OL-17-ONE
  • D-EQUILENIN
  • 1,3,5(10)-6,8-ESTRAPENTAEN-3-OL-17-ONE
  • 3-HYDROXYESTRA-1,3,5,7,9-PENTAEN-17-ONE
  • 3-HYDROXY-1,3,5(10),6,8-ESTRAPENTAEN-17-ONE
  • 3-Hydroxyestra-1(10),2,4,6,8-pentaen-17-one
  • 3-Hydroxyestra-1,3,5(10),6,8-pentaen-17-one
  • 5(10),6,8-pentaen-17-one,3-hydroxy-estra-3
  • 5,7,9-pentaen-17-one,3-hydroxy-estra-3
  • Equilenina
  • Equilenine
  • Estra-1,3,5(10),6,8-pentaen-17-one, 3-hydroxy-
  • Estra-1,3,5,7,9-pentaen-17-one, 3-hydroxy-
  • Isoequilenin
  • Isoequilenine
  • equilenin solution
  • E 400
  • NSC 9901
  • Equilenin, 100 ng/ in Acetonitril, Pestanal
  • [13α,14β,(-)]-3-Hydroxyestra-1,3,5,7,9-pentene-17-one
  • l-Equilenin
  • (14β)-3-Hydroxyestra-1(10),2,4,6,8-pentene-17-one
  • 14-epi-Equilenin
  • d-iso-Equilenin
  • (-)-13-Isoequilenin
  • (-)-13-iso-equilenin
  • [13α,(-)]-3-Hydroxyestra-1,3,5,7,9-pentene-17-one
  • l-Isoequilenin
  • l-iso-Equilenin
  • EQUILENIN USP/EP/BP
  • 517-09-9
  • Intermediates & Fine Chemicals
  • Pharmaceuticals
  • Steroids
  • Miscellaneous Natural Products